Set Hexagon's DefaultMaxPageSize to 64K

[sidneym]

Summary

The kernel's default config selects 64K pages.

[ruiu]

LGTM

ELF/Arch/Hexagon.cpp

 namespace {
 class Hexagon final : public TargetInfo {
 public:
+  Hexagon();
   uint32_t calcEFlags() const override;
   RelExpr getRelExpr(RelType Type, const Symbol &S,
                      const uint8_t *Loc) const override;

 };
 } // namespace
 
+Hexagon::Hexagon() {
+  // Hexagon Linux uses 64K pages by default.
+  DefaultMaxPageSize = 0x10000;
+}
+
 // Support V60 only at the moment.
 uint32_t Hexagon::calcEFlags() const { return 0x60; }
 

test/ELF/hexagon.s

 # RUN: ld.lld %t2 %t  -o %t3
 # RUN: llvm-objdump -d  %t3 | FileCheck %s
 
-# Note: 69632 == 0x11000
+# Note: 131072 == 0x20000
 # R_HEX_32_6_X
 # R_HEX_12_X
 if (p0) r0 = ##_start
-# CHECK: immext(#69632)
-# CHECK: if (p0) r0 = ##69632
+# CHECK: immext(#131072)
+# CHECK: if (p0) r0 = ##131072
 
 # R_HEX_B15_PCREL
 if (p0) jump:nt #_start
-# CHECK: if (p0) jump:nt 0x11000
+# CHECK: if (p0) jump:nt 0x20000
 
 # R_HEX_B32_PCREL_X
 # R_HEX_B15_PCREL_X
 if (p0) jump:nt ##_start
-# CHECK: if (p0) jump:nt 0x11000
+# CHECK: if (p0) jump:nt 0x20000
 
 # R_HEX_B22_PCREL
 call #_start
-# CHECK: call 0x11000
+# CHECK: call 0x20000
 
 # R_HEX_B32_PCREL_X
 # R_HEX_B22_PCREL_X
 call ##_start
 # CHECK: immext(#4294967232)
-# CHECK: call 0x11000
+# CHECK: call 0x20000
 
 # R_HEX_6_X tests:
 # One test for each mask in the lookup table.
 
 #0x38000000
 if (!P0) memw(r0+#8)=##_start
-# CHECK: 38c0c100     if (!p0) memw(r0+#8) = ##69632 }
+# CHECK: 38c0c100     if (!p0) memw(r0+#8) = ##131072 }
 
 #0x39000000
 { p0 = p1
   if (!P0.new) memw(r0+#0)=##_start }
-# CHECK: 39c0c000     if (!p0.new) memw(r0+#0) = ##69632 }
+# CHECK: 39c0c000     if (!p0.new) memw(r0+#0) = ##131072 }
 
 #0x3e000000
 memw(r0+##_start)+=r1
-# CHECK: 3e40c001     memw(r0+##69632) += r1 }
+# CHECK: 3e40c001     memw(r0+##131072) += r1 }
 
 #0x3f000000
 memw(r0+##_start)+=#4
-# CHECK: 3f40c004     memw(r0+##69632) += #4 }
+# CHECK: 3f40c004     memw(r0+##131072) += #4 }
 
 #0x40000000
 { r0 = r1
   if (p0) memb(r0+##_start)=r0.new }
-# CHECK: 40a0c200     if (p0) memb(r0+##69632) = r0.new }
+# CHECK: 40a0c200     if (p0) memb(r0+##131072) = r0.new }
 
 #0x41000000
 if (p0) r0=memb(r1+##_start)
-# CHECK: 4101c000     if (p0) r0 = memb(r1+##69632) }
+# CHECK: 4101c000     if (p0) r0 = memb(r1+##131072) }
 
 #0x42000000
 { r0 = r1
   p0 = p1
   if (p0.new) memb(r0+##_start)=r0.new }
-# CHECK: 42a0c200     if (p0.new) memb(r0+##69632) = r0.new }
+# CHECK: 42a0c200     if (p0.new) memb(r0+##131072) = r0.new }
 
 #0x43000000
 { p0 = p1
  if (P0.new) r0=memb(r0+##_start) }
-# CHECK: 4300c000     if (p0.new) r0 = memb(r0+##69632) }
+# CHECK: 4300c000     if (p0.new) r0 = memb(r0+##131072) }
 
 #0x44000000
 if (!p0) memb(r0+##_start)=r1
-# CHECK: 4400c100     if (!p0) memb(r0+##69632) = r1 }
+# CHECK: 4400c100     if (!p0) memb(r0+##131072) = r1 }
 
 #0x45000000
 if (!p0) r0=memb(r1+##_start)
-# CHECK: 4501c000     if (!p0) r0 = memb(r1+##69632) }
+# CHECK: 4501c000     if (!p0) r0 = memb(r1+##131072) }
 
 #0x46000000
 { p0 = p1
   if (!p0.new) memb(r0+##_start)=r1 }
-# CHECK: 4600c100     if (!p0.new) memb(r0+##69632) = r1 }
+# CHECK: 4600c100     if (!p0.new) memb(r0+##131072) = r1 }
 
 #0x47000000
 { p0 = p1
   if (!p0.new) r0=memb(r1+##_start) }
-# CHECK: 4701c000     if (!p0.new) r0 = memb(r1+##69632) }
+# CHECK: 4701c000     if (!p0.new) r0 = memb(r1+##131072) }
 
 #0x6a000000 -- Note 4294967132 == -0xa4 the distance between
 #              here and _start, so this will change if

 
 #0x7c000000
 r1:0=combine(#8,##_start)
-# CHECK: 7c80c100     r1:0 = combine(#8,##69632) }
+# CHECK: 7c80c100     r1:0 = combine(#8,##131072) }
 
 #0x9a000000
 r1:0=memb_fifo(r2=##_start)
-# CHECK: 9a82d000     r1:0 = memb_fifo(r2=##69632) }
+# CHECK: 9a82d000     r1:0 = memb_fifo(r2=##131072) }
 
 #0x9b000000
 r0=memb(r1=##_start)
-# CHECK: 9b01d000     r0 = memb(r1=##69632) }
+# CHECK: 9b01d000     r0 = memb(r1=##131072) }
 
 #0x9c000000
 r1:0=memb_fifo(r2<<#2+##_start)
-# CHECK: 9c82f000     r1:0 = memb_fifo(r2<<#2+##69632) }
+# CHECK: 9c82f000     r1:0 = memb_fifo(r2<<#2+##131072) }
 
 #0x9d000000
 r0=memb(r1<<#2+##_start)
-# CHECK: 9d01f000     r0 = memb(r1<<#2+##69632) }
+# CHECK: 9d01f000     r0 = memb(r1<<#2+##131072) }
 
 #0x9f000000
 if (!p0) r0=memb(##_start)
-# CHECK: 9f00e880     if (!p0) r0 = memb(##69632) }
+# CHECK: 9f00e880     if (!p0) r0 = memb(##131072) }
 
 #0xab000000
 memb(r0=##_start)=r1
-# CHECK: ab00c180     memb(r0=##69632) = r1 }
+# CHECK: ab00c180     memb(r0=##131072) = r1 }
 
 #0xad000000
 memb(r0<<#2+##_start)=r1
-# CHECK: ad00e180     memb(r0<<#2+##69632) = r1 }
+# CHECK: ad00e180     memb(r0<<#2+##131072) = r1 }
 
 #0xaf000000
 if (!p0) memb(##_start)=r1
-# CHECK: af00c184     if (!p0) memb(##69632) = r1 }
+# CHECK: af00c184     if (!p0) memb(##131072) = r1 }
 
 #0xd7000000
 r0=add(##_start,mpyi(r1,r2))
-# CHECK: d701c200     r0 = add(##69632,mpyi(r1,r2)) }
+# CHECK: d701c200     r0 = add(##131072,mpyi(r1,r2)) }
 
 #0xd8000000
 R0=add(##_start,mpyi(r0,#2))
-# CHECK: d800c002     r0 = add(##69632,mpyi(r0,#2)) }
+# CHECK: d800c002     r0 = add(##131072,mpyi(r0,#2)) }
 
 #0xdb000000
 r0=add(r1,add(r2,##_start))
-# CHECK: db01c002     r0 = add(r1,add(r2,##69632)) }
+# CHECK: db01c002     r0 = add(r1,add(r2,##131072)) }
 
 #0xdf000000
 r0=add(r1,mpyi(r2,##_start))
-# CHECK: df82c001     r0 = add(r1,mpyi(r2,##69632)) }
+# CHECK: df82c001     r0 = add(r1,mpyi(r2,##131072)) }
 
 # Duplex form of R_HEX_6_X
 # R_HEX_32_6_X
 # R_HEX_6_X
 { r0 = ##_start; r2 = r16 }
-# CHECK: 28003082     r0 = ##69632;   r2 = r16 }
+# CHECK: 28003082     r0 = ##131072;  r2 = r16 }
 
 # R_HEX_HI16
 r0.h = #HI(_start)
-# CHECK: r0.h = #1
+# CHECK: r0.h = #2
 
 # R_HEX_LO16
 r0.l = #LO(_start)
-# CHECK: r0.l = #4096
+# CHECK: r0.l = #0
 
 # R_HEX_8_X has 3 relocation mask variations
 #0xde000000
 r0=sub(##_start, asl(r0, #1))
-# CHECK: de00c106      r0 = sub(##69632,asl(r0,#1)) }
+# CHECK: de00c106      r0 = sub(##131072,asl(r0,#1)) }
 
 #0x3c000000
 memw(r0+#0) = ##_start
-# CHECK: 3c40c000     memw(r0+#0) = ##69632 }
+# CHECK: 3c40c000     memw(r0+#0) = ##131072 }
 
 # The rest:
 r1:0=combine(r2,##_start);
-# CHECK: 7302e000     r1:0 = combine(r2,##69632) }
+# CHECK: 7302e000     r1:0 = combine(r2,##131072) }
 
 # R_HEX_32:
 r_hex_32:
 .word _start
-# CHECK: 00011000
+# CHECK: 00020000
 
 # R_HEX_16_X has 4 relocation mask variations
 # 0x48000000
 memw(##_start) = r0
-# CHECK: 4880c000   memw(##69632) = r0 }
+# CHECK: 4880c000   memw(##131072) = r0 }
 
 # 0x49000000
 r0 = memw(##_start)
-# CHECK: 4980c000   r0 = memw(##69632)
+# CHECK: 4980c000   r0 = memw(##131072)
 
 # 0x78000000
 r0 = ##_start
-# CHECK: 7800c000   r0 = ##69632 }
+# CHECK: 7800c000   r0 = ##131072 }
 
 # 0xb0000000
 r0 = add(r1, ##_start)
-# CHECK: b001c000   r0 = add(r1,##69632) }
+# CHECK: b001c000   r0 = add(r1,##131072) }
 
 # R_HEX_B9_PCREL:
 {r0=#1 ; jump #_start}
-# CHECK: jump 0x11000
+# CHECK: jump 0x20000
 
 # R_HEX_B9_PCREL_X:
 {r0=#1 ; jump ##_start}
-# CHECK: jump 0x11000
+# CHECK: jump 0x20000
 
 # R_HEX_B13_PCREL
 if (r0 == #0) jump:t #_start
-# CHECK: if (r0==#0) jump:t 0x11000
+# CHECK: if (r0==#0) jump:t 0x20000
 
 # R_HEX_9_X
 p0 = !cmp.gtu(r0, ##_start)
-# CHECK: p0 = !cmp.gtu(r0,##69632)
+# CHECK: p0 = !cmp.gtu(r0,##131072)
 
 # R_HEX_10_X
 p0 = !cmp.gt(r0, ##_start)
-# CHECK: p0 = !cmp.gt(r0,##69632)
+# CHECK: p0 = !cmp.gt(r0,##131072)
 
 # R_HEX_11_X
 r0 = memw(r1+##_start)
-# CHECK: r0 = memw(r1+##69632)
+# CHECK: r0 = memw(r1+##131072)
 
 memw(r0+##_start) = r1
-# CHECK: memw(r0+##69632) = r1
+# CHECK: memw(r0+##131072) = r1